Spool winding machine



April 30, 1935 c. B. WARREN I SPOOL WINDING MACHINE Filed Jan. 27, 19335 Sheets-Sheet l INVENTOR ATTORNEYS April 30, 1935.

C. B. WARREN SPOOL WINDING MACHINE Filed Jan. 27,1933

7 3 Sheets-Sheet 2 INVENT M BY /Z ATTORNEY$ April 30, 1935. c WARREN1,999,672

SPOOL WINDING MACHINE Filed Jan. 27, 1933 5 Sheets-Sheet 5 INVENTOR Mv1.

MAW-

ATTORNEYS Patented Apr. 3%, 1935 1,999,672 SPOUL WINDING MACHINE CharlesB. Warren, Westfield, Masa, assignor to W. Warren Thread Works,Westfieid, Mass, a, corporation of Massaohusetts Application January 27,1933, Serial No. 653,798

6' Claims.

Theobject of my invention is to provide a novel machine for windingspools of thread having single tapered ends, said machine comprising,generally, means whereby thread of varying sizes may be wound on a spoolhaving a single tapered end, which spool and its laterally movablemandrel are mounted against longitudinal movement; means being providedfor imparting a continuous endwise movement to the traverse mechanism inone direction as the spool is being wound.

My invention comprises, more specifically, a variable speed drive forcontinuously shifting the traverse mechanism endwise at the desiredspeed, according to the size of the thread being wound. I

My invention further comprises a suitable speed reduction unit fordriving the traverse mechanism, manual means being employed fordisconnecting the speed reduction unit from the traverse mechanism afterthe winding of the spool is completed, and means also being provided forautomatically returning the traverse mechanism to its normal startingposition when released from its speed reduction unit.

My invention still more specifically comprises a movable change speedreduction unit in which the final gear of the unit is normally in meshwith a longitudinally disposed rack carried by the traverse cam, saidfinal gear being manually moved out of mesh with the rack after thewinding of the spool has been completed, means being employed forautomatically returning the final gear of the speed reduction unit intomesh with its rack when thespeed reduction unit is released reductiongear in its inoperative position.

The winding machine herein illustrated generally comprises a rotarytraverse cam slidably interlocked with the rotary cam shaft 2 forendwise movement thereon. This traverse cam I reciprocates the traverseguide 3, said guide being carried by a guide bar 4 having a stud orroller 5 which travels in the cam groove 6 of the traverse cam I, saidguide bar 4 having a reciproeating movement parallel to the spoolmandrel l, on which mandrel is removably mounted the spool 8 having asingle tapered end 9.

The spool mandrel has a rotary movement and also a lateral movement butis mounted against endwise movement, the means for accomplishing therotary movement and the lateral movement of the mandrel being of theusual form and a general description thereof will only be includedherein.

The spool mandrel l is journaled in a bracket is fast on aslide bar H.The'pulley l2 on the main drive shaft 53 is driven from any suitablesource ofpower, not shown herein. A loose pulley M is mounted on theshaft l3 adjacent the drive pulley i2. A wide faced spur gear 55 is faston the drive shaft is and it meshes with a spur gear iii rotatablymounted on the slide bar ,I I; This spur gear it has a bevel gear Hwhich meshes with a bevel gear I 8 carried by the mandrel T. The camshaft 2 is driven from the shaft [3 through the pulley E9, belt l$* andpulley'ii'fi, which pulley 25 is fast on a cross shaft 2 l which carriesa bevel pinion 22 meshing with the bevel gear 23 fast on the cam shaft2.

The mandrel l is yieldingly held at'the limit of its inward movement as,for instance, by, the usual weight 2 flexibly connected with the arm 25of the tension device, which tension device is connected through thelink 2:3 with the lever 26 which actuates the slide bar ll.

The rotary traverse cam l is yieldingly held at the limits of itsendwise movement on the cam shaft 2, by means of a coil spring 2iinterposed between the hub 28' of the traverse cam i and the hub 29 ofthe bevel gearifi.

The means whiclrI have shown for impart! inga continuous endwisemovement, to the'ca'm shaft 8 in a direction against the tension of thespring 2? while the spool is being wound, is constructed arranged andoperated as follows:

A longitudinally disposed rack 3% is carried by asleeve 3i whichsurrounds the rotary camshaft 2 and isslidably interlocked with themachine frame 3 2. The inner endof this'sleeve M is'connected to the hub28 of the traverse cam l to move the cam endwise. In the presentinstance this sleeve 3i is provided with a head 33 seated within the hub28, a plate 3% overlapping the head, which plate is secured to the endof the hub.

The change speed reduction unit has its casing 35 pivoted at 35 to themachine frame 32, to swing vertically into and out of its operativeposition. The final gear 3'! of this speed reduction unit projectsthrough the casing 35 into mesh with the rack 39. A spring 38 extendsbetween the machine frame and a lug 3% projects from the casing 35 andserves to hold the unit in its operative position, a stop 40 on themachine frame limiting the downward movement of the unit. A handle llprojects from the casing 35 in position to be used for rocking the unitupwardly to disconnect the final gear 3'5 from its raol: Bil when thewinding of the spool has been completed.

The worm drive shaft 62 of the speed reduction unit may be adjustedlaterally to bring its worm 33 into engagement with any one of aplurality of concentric rings of teeth Q4, 55 or 46 on the under face ofthe rotary disc ll.

This worm shaft 412 is rotatably mounted a casing member 38 which may besecured to the casing 35 in the several adjustments above re ferred to.

"The worm shaft 52 may be driven at difierent speeds from the cam shaft2 by providing the cam shaft with a-stepped-down pulley 59 and the wormshaft 32 with a stepped-up pulley 5%, the two pulleys being connected bya belt 5i.

In operation: As the winding of the spool starts, the very slow endwisemovement of the rotary traverse cam also starts in direction away fromthe free end of the spool and this slow endwise movement of the traversecam continues until the spool is completely wound. This endwise movementof the rotary traverse cam compresses the spring 2?. The handle 45 ofthe change speed reduction unit is then grasped and the unit is rockedto move its final gear 31 out of mesh with the rack (it. As soon as thegear 3? is disconnected from the gear 36 the spring 27 willautomatically return the rotary traverse cam to its normal startingposition. It will be understood that as the spool is wound the'mandrelis automatically moved laterally, as is usual in this type of machine.

The variable speed drive for the speed reduction unit and the changeablespeed for the reduction unit serve together to adjust endwise movementof the rotary traverse cam to the size of material being wound, betweenwide limits.

It is evident that various changes may be resorted to in theconstruction, form and arrangement oi the several parts withoutdeparting from the spirit and scope of my invention, and hence I do notintend to be limited to the par- ,ticular embodiment herein shown anddescribed.

starting position when released from the speed reduction unit.

3. In a machine for winding spools having single tapered ends, a rotaryspool mandrel, a thread traverse guide, a rotary traverse cam forreciprocating it, said cam having a longitudinally disposed rack, meansfor imparting a continuous endwise movement in one direction only, tothe cam as the spool is being wound, said means including a movablespeed reduction gearing unit having its final gear in mesh with saidrack, and means for moving the unit to bring the said final gear out ofmesh with the rack.

4. In a machine for winding spools having single tapered ends, a rotaryspool mandrel, a

thread traverse guide, a rotary traverse cam for reciprocating'it, saidcam having a longitudinally disposed rack, means for imparting acontinuous endwise movement in one direction only, to the cam as thespool is being-wound, said means including a movable speed reductiongearing unit having its final gear in mesh with said rack, means formoving the unit to bring the said final gear out of mesh with the rack,and means for automatically returning thetraverse cam to its startingposition when the said final gear is released from the traverse camrack.

5. In a machine for winding spools having single tapered ends, a rotaryspool mandrel, a thread traverse guide, a rotary traverse cam forreciprocating it, said cam having a longitudinally disposed rack, meansfor imparting a continuous endwise movement in one direction only, tothe cam as the spool is being wound, said means in,- cluding a pivotedspeed reduction gearing unit having its final gear in mesh with saidrack, and means for swinging the unit to bring the said final gear outof mesh with the rack.

6. In a machine for winding spools having single tapered ends, a rotaryspool mandrel, a

thread traverse guide, a rotary traverse cam for reciprocating it, saidcam having a longitudinally disposed rack, means for imparting acontinuous endwise movement in one direction only, to the cam as thespool is being wound, said means including a pivoted speed reductiongearing unit having its final gear in mesh with said rack, means forswinging the unit to bring the said final gear out of mesh with therack, and means for automatically returning the traverse cam to itsstarting position when the said final gear is released from the traversecam rack.

CHARLES B. WARREN,

